Global Patent Index - EP 2090626 A1

EP 2090626 A1 20090819 - Aqueous inkjet recording ink and method for producing the same

Title (en)

Aqueous inkjet recording ink and method for producing the same

Title (de)

Wässrige Tintenstrahlaufzeichnungstinte und Herstellungsverfahren dafür

Title (fr)

Encre aqueuse d'impression par jet d'encre et son procédé de fabrication

Publication

EP 2090626 A1 20090819 (EN)

Application

EP 09152450 A 20090210

Priority

JP 2008032168 A 20080213

Abstract (en)

An aqueous inkjet recording ink including pigment particles coated with a water-insoluble resin, water, and a water-soluble organic solvent including at least one hydroxy group, wherein the water-insoluble resin has a salt-forming group and a structural unit which is derived from a methacrylate and has an aromatic ring linked via a linking group to an atom in the main chain of the water-insoluble resin, and the water-insoluble resin satisfies the condition that when the water-insoluble resin, an organic solvent, one equivalent of a neutralizing agent with respect to the salt-forming group, and water are mixed with a total content of the water-insoluble resin and the organic solvent being 35% by mass relative to the total mass of the mixture, an emulsion is formed without precipitation of the water-insoluble resin, and after the emulsion is allowed to stand for three hours, a transparent single phase is formed, or two separate phases are formed and at least an aqueous phase of the two phases is transparent.

IPC 8 full level

B41J 2/01 (2006.01); B41M 5/00 (2006.01); C09D 11/00 (2014.01)

CPC (source: EP US)

C09D 11/326 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2090626 A1 20090819; EP 2090626 B1 20110622; AT E513883 T1 20110715; JP 2009191134 A 20090827; JP 5247180 B2 20130724; US 2009203823 A1 20090813; US 8178597 B2 20120515

DOCDB simple family (application)

EP 09152450 A 20090210; AT 09152450 T 20090210; JP 2008032168 A 20080213; US 36708809 A 20090206